The old open-cartridge fork has rebound adjusters on the caps of both legs which control The Xplor fork comes as a single-side function fork, meaning all of the damping is in one side. Quick View. This asymmetry is a poor design for an open cartridge fork because it causes excessive cavitation and hysteresis. WP KTM Husaberg Closed Chamber Bladder Forks.mp4 How To Rebuild The WP Fork Inner Cartridge How to Change WP Closed Chamber Fork Springs How To Rebuild WP Xplor Forks WP 4CS Fork Seals Is it worth spending $10,000 on dirt bike suspension? Design by: Blue Sky Designs, How-to Change WP Open Cartridge Fork Springs, How-to Install Slavens Mule Lucky Fork Cartridges – Xplor Forks, How-to Replace Fork Seals on WP AER Forks, How-to Change Fork Springs in WP Xplor Forks, How to Change Fork Springs – WP Explor, 4CS, Open Chamber, Shock/Rear Suspension Parts & Accessories, How to Use the Athena WiGET App for GET ECUs, Product Showcase Nihilo Secondary On Switch (SOS). Cavitation and the resulting hysteresis causes harshness, fade, unpredictable damping behavior, and rapid fluid breakdown. Kreft Moto has identified the following performance issues with the stock XPlor fork: Harsh response to square-edged obstacles at mid- and high-speeds, Ineffective compression adjuster (see dyno graph). The WP XACT Pro Spring fork has a spring and clicker-controlled damping in both fork legs. Below are a few of the shortcomings, as we see them: 1.) Kreft Moto Xplor: Left vs Right Fork Legs. Xplor Shock Service - $125 *Inspection and cleaning of all parts (Shaft Bushing is only cleaned and inspected if seal is replaced.) Oil Filters. In user manual is only oil capacity - 635ml. Revalve Control technology (patent pending) is available exclusively from Kreft Moto, Video: our review of stock Xplor suspension. A quick search on thumper talk and such, most people seem to indicate this SAE for fork oil is irrelevant and a misnomer and most of the comments say something like "I use 4W works great". 2017 -19 KTM / HUSKY XPLOR APS FORK MODS; SFR (STANDARD FORK REVALVE) - ALL BRANDS; APS (ADVANCED PROGRESSIVE SYSTEM) FORK MODS - KTM OPEN CHAMBER FORKS (00-06 ALL / 07-16 EXC/XCW) ... WP made some decent forks. shipping: + $9.02 shipping . Copyright © 2011-2017 Kreft, LLC. Thanks to the numerous and externally adjustable settings, you are always perfectly adapted to all off-road demands even when conditions change at the last minute. Showa Fork Springs. Fork oil change. They redistribute the compression damping between both legs and a low speed compression adjuster to the left fork. In fact, riders who are more aggressive and attempt to push the stock forks at a higher than trail tour pace – find the forks too soft, unpredictable and easy to bottom. 2017 -19 KTM / HUSKY XPLOR APS FORK MODS; SFR (STANDARD FORK REVALVE) - ALL BRANDS; APS (ADVANCED PROGRESSIVE SYSTEM) FORK MODS - KTM OPEN CHAMBER FORKS (00-06 ALL / 07-16 EXC/XCW) ... WP made some decent forks. Quick View. - … XPLOR Pro 6746 Enduro Shock. A very basic adjustment would be to simply alter oil viscosity for a desired effect. Tusk Fork Cap Wrench $13.99 ... Motorex Racing Fork Oil $16.99 – $20.99. SRV-002 Fork Re-Valve & Set Up $194.95 FRI-039 WP XPlor Fork Parts: Piston Rod Rebound, Piston Cpl, $201.95 Adjusting Needle, Spring Rebound, Oil, Comp. Shift Levers. Below are a few of the shortcomings, as we see them: 1.) Your email address has been added to our newsletter distribution list. The fork … The stock Xplor fork places 66% of compression damping and 100% of rebound damping in the right fork leg. They still need to be tuned for your specific parameters. They were in limited U.S. models in 2014 and are on most 2015 KTM full sized dirt bikes. x 470mm length. WP 4CS (Four Chamber) forks have been used in KTM European models since 2013. Tusk WP Xplor Fork Preload Cap Wrench 183-582-0001. The air chamber is already there in the fork’s design (which is adjustable), and air offers incredibly progressive resistance. THEREFORE, we always use the "with oil" method and fill the gap with fluid before setting oil level (as described above). These are very high quality with KTM suspension spring rates not available from WP … Fluid filled with bubbles produces much less damping force than a stable fluid. The Xplor fork comes as a single-side function fork, meaning all of the damping is in one side. ... Don't even have to drain the fork oil to install them. Despite the XPlor PDS shock's limitations, we consider it a solid platform for development. x 470mm length. Cavitation bubbles have been measured at over 6000° C (for a brief moment) and are known to destroy industrial valves and boat propellers, among other things. Timing chain … → XPlor with Revalve Control divides damping duties equally between both fork legs, reducing the danger of cavitation. XPLOR Pro 8946 is designed with rear tire contact in mind. Compare . Improved versatility means improved performance potential. The XPLOR forks come from WP as a trail-friendly package for slower-speed, dual-sport terrain. Compare . The Motorex Racing Lab also developed an additional 4W RACING FORK OIL for the 4CS, AER and Xplor forks by WP. Bolt Kit SRV-003 Shock Re-Valve & Set Up $164.95 SRI-020 (‘15.5-18 only) Shock Piston, Shock Oil, Bladder Cap, Bladder, Air Valve, $265.54 These instructions are for the models with the inverted, WP forks. The air chamber is already there in the fork’s design (which is adjustable), and air offers incredibly progressive resistance. 3. Compare . When you strike a bump, the amount of force transmitted to the rider is directly proportional to the travel your suspension uses to absorb the bump (F=ma). KTM Fork SealsHow To Rebuild The WP Fork Inner Cartridge KTM \u0026 Husqvarna WP Xplor Fork Oil Seal Change- Updated How to Service WP KTM Husaberg Closed Chamber Bladder Forks.mp4 How To Rebuild The WP AER Motorcycle Forks KTM and Husqvarna AER 48 fork spring conversion Fork fluid contains dissolved gasses that can materialize into tiny but visible bubbles when a pressure drop occurs. How are the Gobbler's different? Traditionally, that would be accomplished with suspension revalve. Bel-Ray High Performance Fork Oil $11.99 $15.82 ... Prices are subject to change without notice. All suspension tuners will attempt to manipulate oil flow within forks and shock absorbers to achieve greater levels of performance. K-Tech Off Road Valve System is a direct replacement for the WP XPLOR cartridge systems. Tusk Fork Cap Wrench $13.99 ... Motorex Racing Fork Oil $16.99 – $20.99. Though Xplor is asymmetical, it is unpressurized and as a result suffers from severe cavitation. K-Tech Off Road Valve System is a direct replacement for the WP XPLOR cartridge systems. The stock WP XPLOR fork is a low cost design that results in very soft suspension. WP To KYB Conversion (Fits WP 4CS / AER / Xplor Forks) (WP To KYB Conversion) Choose Your Spring Rate From One Of The Two Lists Below Choose Fork Spring Rate 497mm (No Spacer Needed) Shift Levers. Husqvarna `17-19 TE 125/250/300, FE 250/350/450/501 (Xplor) Husqvarna 2019.5 FC250/450 Factory Edition (WP XACT air fork) Husqvarna `20-21 TC/TX 250/300, FC/FX 250/350/450 (WP XACT air fork) Husqvarna 701 Enduro `19-20 Husabergs with WP forks EXCEPT 4CS Forks All Gas Gas with WP or Marzocchi forks `21 GasGas EX300, EX/MC250F, EX350F, EX/MC450F No control of low speed compression damping, Progressive damping curve (wallowy, but harsh on sharp impacts), For 2017 KTM 450 EXC dyno chart click here, Total control of both low and high speed damping, Kreft XPlor Low Speed Compression Adjustment Range, The compression adjuster causes the damping curve to shift up or down, but does not change its slope, This is the traditional function of compression "clickers", Kreft XPlor Revalve Control Adjustment Range, Revalve Control changes the slope of the damping curve, Accomplishes the same thing as a traditional "revalve" service, No other suspension fork has this adjustment capability. Specially designed for Enduro riding, the ORVS includes complete compression and rebound assemblies with new pistons, finer adjustment needles, a new hydraulic bottoming cup which seals the cartridge tube to improve damping response time / bottoming control and new top cap adjusters with updated cap … With the KTM method, when fluid transfers from the gap to the center of the tube, the oil level will drop 10mm. The manual calls for SAE 4 fork oil. → Kreft XPlor with Revalve Control provides total control of the damping curve. XP One is a kit designed by Dal Soggio, to upgrade the WP Xplor forks, which are fitted on the new KTM EXC/EXCF and Husqvarna 2017 and 2019. 1 x 50mm Fork Cap Wrench. Oil pump. Up top the left side features the Revalve Adjuster which makes noticeable changes in the damping and the right side controls the rebound. The air chamber is already there in the fork’s design (which is adjustable), and air offers incredibly progressive resistance. The XPLOR PRO 6500 cartridge will fit most KTM and Husqvarna models from 2017 onwards outfitted with a WP fork, and the GasGas 300 EC also supports the upgrade. Kreft Moto completely alters the landscape within the bowels of the WP Xplor fork. A non-cavitating fork distributes the bump force more evenly across it's available travel, creating even, predictable dampig right from the moment of impact. In user manual is only oil capacity - 635ml. A valve assembly consists of two critical parts. If you want to change oil level or replace fork springs, it is difficult to remove oil from between the tubes. Kreft mods distribute damping duties evenly between both fork legs. Rear shock absorbers generate much more damping force than a fork, and consequently they are pressurized to 150 psi to reduce the risk of cavitation. The 1st adjuster makes big change in damping force with an 8mm hex. All rights reserved. WP is now offering the Xplor Pro 6500 Cartridge fork for KTM and Husqvarnas from 2017 to the current models, and the 2021 GasGas EC 300. Furthermore, if a performance issue does arise, it is much more likely Kreft Moto can resolve the issue at a distance, rather than requiring shipping back to the suspension shop for a valving revision. Performance Parts. 9 How does XP-One kit work? Fit for SX/SXF 2007-2013. Cavitation is the technical term for gas bubbles forming in the fluid. Performance Parts. Without an upgraded shock the rear wheel is free to bounce around and skip small obstacles that otherwise would give you more traction to launch up your hill. 1: This motorcycle fork cap wrench is made to fit modern WP dual-chamber forks with a 50mm hex fork cap. The XP-One kit replaces the base valve and the mid valve (not present on the original fork) and this allows a much improved oil flow for the fork. Oil: SAE 4 (fork oil 4w) Quantity: 635ml per fork Air chamber: 110mm According to the instructions: new oil every 50 hours That I changed at 200h Redistribute damping duties equitably between both fork legs, Replace Xplor's problematic compression adjustment mechanism with our revolutionary Revalve Control system, New low speed compression adjuster circuit, Overhaul the valving configuration in line with Kreft standards: firm but plush, Video: Kreft Moto’s XPlor suspension mods, Plush response to sharp impacts at speed (no more high-speed deflection), More consistent damping performance due to reduced cavitation and hysteresis, Effective and independent adjustment circuits provide total control of the damping curve, Kreft provides a suspension settings table to help you get the most from Revalve Control, Clear guidelines on how to tune for varying terrain and ability levels, Revalve Control adjuster on the left fork cap, Example XPlor settings table - provided to every rider, Note: cost of wear parts and fluid not included. It replaced the previous Open Chamber (OC) and 4CS Forks. Fit for XC/XCF 2008-2013. Pus the oil contained within the WP air fork’s outer chamber is purely for lubrication. In other words, you no longer have to change the oil height (and air volume, as a result) to generate better bottoming resistance. WP Inverted Fork Oil Change -by Steven Iveson [Additional comments by Jerry Riedel] Having just changed the oil in the forks from my Daytona I might be able to lend some insight. It got a little bit better but I wasnt happy with them so I got them revalved again but Im still not happy with them. Oil Filters. Want details and data? Rocky mountain and other stores also only list 4W, 5W, 7W, etc fork oil. The 4W fully complies with the specifications indicated by the WP’s fork … The chart on the right shows damping forces in the left and right stock Xplor fork legs. Oil pump. Fork Springs WP48mm 44mm x 470mm for WP 4CS & WP XPlor. Tusk WP Xplor Fork Preload Cap Wrench $12.99 $17.99 You save 28% . Though Xplor is asymmetical, it is unpressurized and as a result suffers from severe cavitation. Thank you! S.A.S. But in our opinion, the design of the forks leaves massive room for improvement. Kreft Moto converts the Xplor fork into a high performance damper capable of adapting to any terrain and any rider - from beginner to pro. ... Oil Filler Cap. THAT MAKES THE FORK FEEL HARSH! Notice that the blue curve (right leg) does 100% of the rebound damping (shown as negative forces), and about 66% of the compression damping (positive forces). Revalve Control is a groundbreaking new technology created by Kreft Moto suspension engineers. When you think about it, the suspension is the most critical systems on your bike. Cavitation is also extremely destructive to the fork fluid. Some models come with external pre-load adjusters. S.A.S. Yes there is an allen bolt at the bottom of the fork … + Giveaway Winner! Improved feedback from the track in every riding situation Each fork can be fine-tuned to meet the special requirements of each individual customer Open Cartridge technology, well-established in racing Compression and rebound damping easily adjusted at the top of the fork … The Xplor has compression and rebound adjustment on both fork caps with no adjustments at the base. The KTM 500 EXC-F’s fuel-injected powerhouse makes it the most compact and lightest 500 on the market, while delivering groundbreaking torque and power figures over the entire rev range thanks to a single overhead camshaft cylinder head and the latest electronic fuel injection. The WP XACT Pro Spring fork has a spring and clicker-controlled damping in both fork legs. Normal damping force returns after the bubbles collapse, but meanwhile the fork has lost travel. Bel-Ray High Performance Fork Oil $11.99 $15.82 ... Prices are subject to change without notice. Why is cavitation bad for fork performance? WP has a long history in the professional Enduro racing scene and provides many parts to the sports top factory teams. Hi, I have a KTM 350 with AER 48mm Air forks. Certainly it is a stronger starting point than the stock XPlor fork. Each fork can be fine-tuned to meet the special requirements of each individual customer Open Cartridge technology, well-established in racing Compression and rebound damping easily adjusted at the top of the fork … Thanks for joining us here for the basic tear down of the new WP XPlor 48 mm fork that comes on the Husky TE models and the KTM EXC-F and XC-W models, as well as Husky TE, FE, FE-S. Ep. WP introduced the Xplor fork. For 2017 both brands’ enduro bikes got the new WP XPlor 48 fork, with Husky maintaining a point of difference by running three-way preload adjusters on the fork caps. 2017 WP Xplor Fork Oil Seal Change. Some models come with external pre-load adjusters. KYB 3mm inverted fork, fully-adjustable: WP XPLOR 48mm inverted fork, fully-adjustable: REAR SUSPENSION: KYB single shock, fully-adjustable w/remote preload adjuster: WP XPLOR PDS single shock, fully-adjustable: FRont SUSPENSION TRAVEL: 8.3″ (210mm) 9.45″ (240mm) Rear SUSPENSION TRAVEL: 7.9″ (200mm) 9.45″ (240mm) WHEELBASE: 62.8″ (1595mm) Pus the oil contained within the WP air fork’s outer chamber is purely for lubrication. For a full list of all models that support this WP upgrade, please visit the WP … XPLOR Pro 6746 Enduro Shock. Plates. In stock form, the right fork leg does all the work. The same thing happens when you open a bottle of soda -- bubbles dissolved in the fluid when under pressure become fizz when the container is depressurized. A cavitating fork blows through the aerated fluid, and then has less travel available to absorb the bump once the the bubbles collapse. Watch our video review or our technical overview. 2017 WP Xplor Fork Oil Seal Change. 35 x 330L Mini Fork; 48mm x 485L Bladder Fork; 48mm x 505L Open Fork; 48mm x 470L 4CS and Xplor Fork; 43 x 580L 85 Fork Spring (For Conversion) Balance/Pressure/Chamber Springs; Shock Springs. Fork Springs WP48mm 44mm x 470mm for WP 4CS & WP XPlor. These are very high quality with KTM suspension spring rates not available from WP … 2. The 4W fully complies with the specifications indicated by the WP’s fork design. No matter how much information we gather, it is nearly impossible to fully understand his requirements. Bolt Kit SRV-003 Shock Re-Valve & Set Up $164.95 SRI-020 (‘15.5-18 only) Shock Piston, Shock Oil, Bladder Cap, Bladder, Air Valve, $265.54 Revalve Control - the world's first external revalve. ALL WP AER & Xplor Fit forks. Compare . Fork All EXC models are fitted with the WP XPLOR 48 upside-down fork. Identifying and satisfying an individual customer's suspension preferences is the most challenging part of being a suspension tuner. The XPLOR Pro 7548 Fork (which supersedes WP’s 48mm Cone-Valve fork) still comes with conventional pistons and shims for both compression and rebound damping in both fork legs, but a tapered cone replaces the traditional mid-valve assembly (and this appears in both fork legs, not one) to give you additional tunability. The unequal distribution of damping force creates excessive cavitation in an open-cartridge fork. In other words, you no longer have to change the oil height (and air volume, as a result) to generate better bottoming resistance. Pus the oil contained within the WP air fork’s outer chamber is purely for lubrication. The XPLOR PRO 6500 Cartridge was developed to easily upgrade your bike by utilizing the standard fork rods of your endure and improve your riding experience. In some cases, the customer himself does not know or does not know how to articulate what he wants. The stock Xplor fork has a very narrow compression adjustment range, and low speed compression cannot be adjusted at all. KTM WP 4CS & WP XPlor fork springs made in Europe and the USA for Slavens Racing. The Motorex Racing Lab also developed an additional 4W RACING FORK OIL for the 4CS, AER and Xplor forks by WP. The XPLOR forks come from WP as a trail-friendly package for slower-speed, dual-sport terrain. We think the design brief was a light fork, easy to adjust, with setting aimed at … * Maxima Racing 85/150 5w oil. The WP AER fork is also an asymmetrical damper, but the design wisely includes a powerful pressurization system. These forks require a special procedure on fork reassembly. I didnt like the fork so I got it revalved. But in our opinion, the design of the forks leaves massive room for improvement. The rest is very similar to most modern forks. Revalve Control puts the full power of a professional tuner at your fingertips, enabling customers to test and experience different types of valving configurations (based on our settings chart) for the first time. $13.45. Next step beyond oil weight change is to revalve the suspension components. Fork top adjustability on the WP Xplor Pro 6500 cartridge WP Suspension Xplor Pro 6500 cartridge advantages. We were able to successfully address each problem area without the need for a major design revision (as was required for the XPlor fork). With the KTM method, when fluid transfers from the gap to the center of the tube, the oil level will drop 10mm. → Kreft Moto's XPlor with Revalve Control eliminates the need for guesswork. Quick View. If you want to change oil level or replace fork springs, it is difficult to remove oil from between the tubes. KTM's profilation of this bike: The 500 EXC-F is the strongest Enduro bike in the world. Quick View. Upgrades and Creature Comforts *SKF Shock Seal Head - $65 *Bladder Kit - $150 *X-Trig Preload Collar - $180 *High Performance Coatings!!! KTM Suspension Springs – 44mm O.D. Plates. The more damping force is created, the greater the pressure drop across the valve. Revalve Control is the only fork adjustment capable of altering the slope of the damping curve. THEREFORE, we always use the "with oil" method and fill the gap with fluid before setting oil level (as described above). In other words, you no longer have to change the oil height (and air volume, as a result) to generate better bottoming resistance. YZ450F Supermoto Build: KYB 48mm Fork Rebuild! The WP AER fork is also an asymmetrical damper, but the design wisely includes a powerful pressurization system. They still need to be tuned for your specific parameters. KTM WP 4CS & WP XPlor fork springs made in Europe and the USA for Slavens Racing. Timing chain … Specially designed for Enduro riding, the ORVS includes complete compression and rebound assemblies with new pistons, finer adjustment needles, a new hydraulic bottoming cup which seals the cartridge tube to improve damping response time / bottoming control and new top cap adjusters with … Tusk WP Xplor Fork Preload Cap Wrench $12.99 $17.99 You save 28% . SRV-002 Fork Re-Valve & Set Up $194.95 FRI-039 WP XPlor Fork Parts: Piston Rod Rebound, Piston Cpl, $201.95 Adjusting Needle, Spring Rebound, Oil, Comp. How-to Change Fork Springs in WP Xplor Forks How to Change Fork Springs – WP Explor, 4CS, Open Chamber AER 48 Service Video //WP AER 48 Track Setup //WP ... Oil Filler Cap. In other cases, the requirements vary so widely that any single suspension setup is incapable. Thanks to our ground breaking Revalve Control system, Kreft Moto Xplor has highest degree of versatility ever seen in a production or aftermarket fork. KTM Suspension Springs – 44mm O.D. A split fork design developed by WP and KTM, it is fitted with springs on both sides, but with separate damping circuits, with the left-hand fork leg damping only the compression stage and the right hand one only the rebound. 47mm x 493L; 47mm x 740mm SFF (11 KX250F) 49mm x 470mm 17 CRF450; 48mm x 657mm SFF; 49mm x 657mm SFF; WP Fork Springs. You may unsubscribe at any time. We incorporated this feature into our modifications for the XPlor fork for three reasons: 1. Fluid filled with bubbles produces much less damping force than a stable fluid.